Fantastic Pit at Ellison's Cave, Georgia Ellison's Cave far under Pigeon Mountain in northwest Georgia. The cave's "Fantastic Pit," seen here, is the deepest cave drop in the continental United States at a staggering 586 vertical feet vertical meters).
Miralles Lines, Curvature Analysis through Graphic Differential Geometry Tangent & Normal Notation. In order to find a common notation that can describe all three curves, a notation of lines tangent and normal to the curves is introduced. Each tangent
Visionary architect and artist Iakov Chernikhov – produced gorgeous conceptual architectural renderings that were years ahead of their time; his designs bore remarkable resemblance to the modernist architecture of the late century.